1. University of Groningen, University Medical Center Groningen, Department of Biomedical Engineering, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
2. University of Groningen, Department of Molecular Immunology, Groningen Biomolecular Sciences and Biotechnology Institute, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
3. Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
4. Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nam. 2, 166 10 Prague, Czech Republic